1.13.56 MHz NFC 2. 50 x 70 mm, Multi-size available 3. waterproof,anti-metal ... 70 mmOther size: 79.5 x48, 78 x47, 50 x50, 62 x22, 37.5 x25…Customer size per negotiationThicknessAlu Antenna: ... * NFC Mobile Consumption* Electrical equipment tracking Temperature:Operating:.-25C to +50 C 13.56 MHz NFC mifare RFID sticker: 13.56 ...